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Finding the Third Proportional to 17,961.75 and 38,961

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Solution

The third proportional to 17,961.75 and 38,961 is: 84,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,961.75 : 38,961 = 38,961 : x
  2. Step 2: Convert to fraction form
    17,961.75/38,961 = 38,961/x
  3. Step 3: Cross multiply
    17,961.75x = 38,961 × 38,961
  4. Step 4: Simplify right side
    17,961.75x = 1,517,959,521
  5. Step 5: Solve for x
    x = 1,517,959,521/17,961.75
  6. Step 6: Final answer
    x = 84,510.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.